Even if you're not required to file a 2016 return, there are reasons you may want to file a tax return. Start the FILucator. (Do I Have to File a Tax Return) Select Your Filing Status. I don't know my filing status. To help you choose the right filing status, use our STATucator tool.
An abnormal heart rhythm is when your heart beats too fast, slow, or irregularly. This is also called an arrhythmia. Within the heart is a complex system of valves, nodes, and chambers that control how and when the blood is pumped. An abnormal heart rhythm is when your heart beats too fast, slow, or irregularly.
Abnormal heart rhythms are called arrhythmias. There are two kinds of cardioversion. Your doctor may give you one or more medicines to bring back your regular heartbeat. This is called pharmacologic (chemical) cardioversion. Doctors also restore regular rhythms by sending an electrical shock to the heart. This is called electrical cardioversion.